added missed HeapMmgr files
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qse/include/qse/cmn/HeapMmgr.hpp
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63
qse/include/qse/cmn/HeapMmgr.hpp
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@ -0,0 +1,63 @@
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/*
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* $Id$
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*
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Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _QSE_CMN_HEAPMMGR_HPP_
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#define _QSE_CMN_HEAPMMGR_HPP_
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#include <qse/cmn/Mmgr.hpp>
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#include <qse/cmn/Mmged.hpp>
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#include <qse/cmn/xma.h>
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/////////////////////////////////
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QSE_BEGIN_NAMESPACE(QSE)
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/////////////////////////////////
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/// The HeapMmgr class implements the heap-based memory manager interface.
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/// It is a memory manager that's memory managed by another memory manager.
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class QSE_EXPORT HeapMmgr: public Mmgr, public Mmged
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{
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public:
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HeapMmgr (Mmgr* mmgr, qse_size_t heap_size, bool raise_exception = true);
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~HeapMmgr ();
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void* allocMem (qse_size_t n);
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void* reallocMem (void* ptr, qse_size_t n);
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void freeMem (void* ptr);
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// the library does not provide a stock instance of this class
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//static HeapMmgr* getInstance ();
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protected:
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qse_xma_t* xma;
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qse_size_t heap_size;
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};
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/////////////////////////////////
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QSE_END_NAMESPACE(QSE)
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/////////////////////////////////
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#endif
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@ -66,6 +66,10 @@ public:
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///
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Mmgr (bool raise_exception = true): raise_exception (raise_exception)
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{
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// NOTE:
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// the #qse_mmgr_t interface is not affected by raise_exception
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// because direct calls to the virtual functions that don't raise
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// exceptions are made via bridge functions below.
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this->alloc = alloc_mem;
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this->realloc = realloc_mem;
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this->free = free_mem;
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@ -170,6 +174,13 @@ void* operator new (qse_size_t size, QSE::Mmgr* mmgr);
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void operator delete (void* ptr, QSE::Mmgr* mmgr);
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#if 0
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// i found no way to delete an array allocated with
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// the placement new operator. if the array element is an instance
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// of a class, the pointer returned by the new operator call
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// may not be the actual pointer allocated. some compilers
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// seem to put some information about the array at the
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// beginning of the allocated memory and return the pointer
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// off a few bytes from the beginning.
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void* operator new[] (qse_size_t size, QSE::Mmgr* mmgr);
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void operator delete[] (void* ptr, QSE::Mmgr* mmgr);
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#endif
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@ -40,6 +40,8 @@ QSE_BEGIN_NAMESPACE(QSE)
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class QSE_EXPORT StdMmgr: public Mmgr
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{
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public:
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StdMmgr (bool raise_exception = true): Mmgr (raise_exception) {}
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void* allocMem (qse_size_t n);
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void* reallocMem (void* ptr, qse_size_t n);
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void freeMem (void* ptr);
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91
qse/lib/cmn/HeapMmgr.cpp
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91
qse/lib/cmn/HeapMmgr.cpp
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@ -0,0 +1,91 @@
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/*
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* $Id$
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*
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Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
|
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <qse/cmn/HeapMmgr.hpp>
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#include <qse/cmn/xma.h>
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/////////////////////////////////
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QSE_BEGIN_NAMESPACE(QSE)
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/////////////////////////////////
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struct xma_xtn_t
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{
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HeapMmgr* heap;
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};
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HeapMmgr::HeapMmgr (Mmgr* mmgr, qse_size_t heap_size, bool raise_exception):
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Mmgr(raise_exception), Mmged(mmgr), xma(QSE_NULL), heap_size (heap_size)
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{
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}
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HeapMmgr::~HeapMmgr ()
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{
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if (this->xma) qse_xma_close (this->xma);
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}
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void* HeapMmgr::allocMem (qse_size_t n)
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{
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if (!this->xma)
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{
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this->xma = qse_xma_open (this->getMmgr(), QSE_SIZEOF(xma_xtn_t), heap_size);
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if (!this->xma) return QSE_NULL;
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xma_xtn_t* xtn = (xma_xtn_t*)qse_xma_getxtn (this->xma);
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xtn->heap = this;
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}
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void* xptr = qse_xma_alloc (this->xma, n);
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if (!xptr) QSE_THROW (MemoryError);
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return xptr;
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}
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void* HeapMmgr::reallocMem (void* ptr, qse_size_t n)
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{
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if (!this->xma)
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{
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this->xma = qse_xma_open (this->getMmgr(), QSE_SIZEOF(xma_xtn_t), heap_size);
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if (!this->xma) return QSE_NULL;
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xma_xtn_t* xtn = (xma_xtn_t*)qse_xma_getxtn (this->xma);
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xtn->heap = this;
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}
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void* xptr = qse_xma_realloc (this->xma, ptr, n);
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if (!xptr) QSE_THROW (MemoryError);
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return xptr;
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}
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void HeapMmgr::freeMem (void* ptr)
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{
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if (this->xma)
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{
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qse_xma_free (this->xma, ptr);
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}
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}
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/////////////////////////////////
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QSE_END_NAMESPACE(QSE)
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/////////////////////////////////
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